Receptacle for frozen products



June 21, 1932. wlLLAuER 1,863,736

RECEPTACLE FOR FROZEN PRODUCTS Filed Feb. 1, 1930 Patented June 21, 1932UNITED STATES PATENT OFFICE WILLIAM R. WILLAUEB, OF PHILADELPHIA,PENNSYLVANIA, ABSIGNOB TO Hm- THON PAPER HILLS COMPANY, 01' ROTHSCHILD,WISCONSIN, A CORPORATION OF WISCONSIN BEOEPTAGLE FOR FROZEN PRODUCTS-Application filed February 1, 1980. Serial 110. 425,228. 4

This invention relates to a receptacle for frozen products, such as,ice-cream or the like; and more particulagly .to a receptacle forrefrigerating such pr ucts during transportation or storage.

My invention, in its broadest aspect, contemplates the use of adouble-walled container for frozen products and a tube for a solidifiedgaseous refrigerant centrally positioned in the container, the tube andcontainer being interconnected so as to provide for a circulation of therefrigerating medium after conversion to the gaseous state through thespace between the double walls of the container to thus completelysurround the frozen products with said medium.

It is accordingly an object of this invention to provide a refrigeratinreceptacle for frozen products wherein a so id refrigerant that isnormally gaseous is employed and wherein the receptacle is soconstructed as to provide for the insulation of the same by means ofsuch refrigerant when converted into the gaseous state.

Itisafurther object of this inventionto provide a refrigeratinreceptacle for ice-cream and the like where y such products may beefiiciently and readily transported and stored without a substantialchange in their physical form.

Other and further important objects of this invention will becomeapparent from the following description and appended claims.

Referring now to the drawing which discloses a preferred form of myinvention:

Figure 1 is an isometric view of my receptace, parts thereof being shownin section an Figure 2 is a detail in isometric of a portion of thepaper board plies forming the end members of said recptacle. 1

The improved receptacle of this invention indicated generally by thereference numeral 1, comprises a container '2, of sulfurized fibre boardor the like, for the frozen products.

The ends of the container 2 are closed by friction closures 3 and 41,each of which have a flange 5 for gripping the ends of said container.The closure members 3 and 4 are also made of sulfurized fiber board.

The inner face of each closure 3 and 4 is provided near its center witha cup-shaped member or socket 6, secured thereto by means of brads orsimilar conventional fastening means 7. An inwardly extending flange 8on saidmembers 6 fits about and frictlonally grips the open ends of atubular refrigerant rece tacle 9 to thereby close the ends of said tubeand support the same in said container 1. The tube 9 1s adapted to befilled with a solidified gaseous refrigerant, such as solid carbondioxide or the hke. The socket members 6 and end members 3 and 4 areprovided with communicating openings or passages 10 for a purpose to belater described.

Surrounding the frozen products container 2, is a jacket or casing 11,said jacket bein composed of a plurality of plies of corrugated fibreboard 12 and 13, as clearly shown in the section C in the lefthand sideof Fig. 1. Each ply of said fibre board comprises a wall 14 having acorrugated sheet 15 secured thereto, so that when the plies areassembled to form a jacket as shown in Fig. 1, the spacing provided bythe corrugated sheets 15 will form open ended passages extending thefull length of the jacket 11. The ends of jacket 11 are closed by meansof end disks '16 and 17 which fit against the end members of container2. Said end disks are securedto the jacket 11 by means of strips 18 ofsealing paper or the like.

The end disks 16 and 17 are also constructed of a plurality of plies ofcorrugated fiber board in the same manner as the plies forming the bodyportion of jacket 11. When the end disks are secured on the jacket 11,the passages occurring in the main body portion of the jacket betweenthe container 2 and the wall 14 of the outer ply of the jacket willoverlie the corrugated sheet 21 of the inner ply 20 of said end disks.Said corrugated sheets 21 are perforated as shown at 26 in Fig. 2 as iseach of the walls 22 oftheinnerplies20. The interior of tube 9, by meansof the apertures 10 in the sockets 6 and perforations 26 in thecorrugated sheets 21 and walls 22 of the jacket end members is thusplaced in communication with the above described passages in the jacketbody 11 so that when the solidified carbon dioxide in tube 9 takes upheat from the frozen products in container 2, and is converted to a gas,the gas will clrculate from said tube 9, to and through the bottom disk,of the jacket 11, through the jacket 11 and into the top end disk ofsaid jacket. In this way the container 2 and 1ts enclosed frozenproducts will be completely surrounded by said gas, which is in itselfan insulator, and thereby reatly increase the refrigerating efiiciencyof the receptacle.

In assembling the device, it is merely necessary to roll a pair of pliesof corrugated fiber board over the container 2, to form the jacket 11.The lower end disk is then placed on said acket and secured thereto. Thecontainer 2 is then filled with frozen products and tube 13 with a stickof solidified carbon dioxide. The cover 3 is then placed over thecontainer 2 and the upper end disk over the jacket 11.

The device so formed will comprise in effect a container composed ofspaced apart walls, the space between the walls containing an insulatmggas.

By constructing the device in this manner the as space required toretain the carbon dioxi e is materially reduced. Furthermore,

- the efliciency of the refrigerant is augmented by producing the lowesttemperature of the frozen products at the center of the same.

It has been calculated by employing my device, that at the averagesummer heat of 75 F. a five gallon can of ice-cream, leaving the storageroom at 0 F. will be retained at approximately that temperature for aperiod of eighteen hours.

It is, of course, to be understood that details of my construction maybe varied without departing from the spirit of the invention disclosedand, hence, I do not purpose to limit myself except as is necessitatedby the prior art.

I claim as my invention: Y

1. A refrigerating device for frozen products comdprising a containerhaving spaced apart si e and end walls with a gas space between saidspaced walls, a tube for a solidified gaseous refrigerant centrallypositioned in said container and extending the full length thereof, saidtube and gas space being interconnected whereby said refrigerant whenconverted to the gaseous state will circulate from said tube into saidgas space.

2. A receptacle for frozen products comprising a container for saidfrozen products, a tube for a solidified gaseous refrigerant positionedcentrally in said container, means for closing said container and tube,a jacket surrounding said container, said jacket being formed of aplurality of plies of corrugated fiber board arranged one on the otherto provide gas passages in said plies, said tube and gas passages beinginterconnected whereby said solidified refrigerant when converted totube into said tainer walls whereby to the gaseous state will circulatefrom .said

assa es. 3. Adevice or re igeratin frozen prod ucts'comprising acontainer or said products, end closures for said container, socketssecured to the inner faces of said end 010- sures, a tube for asolidified gaseous refrigerant supported in and having its ends closedby said sockets, a 'acket surrounding said container body, said jacketbeing formed of a pair 'of plies of corrugated fiber board arranged toprovide as passages extending the length of said jac et, end disks forclosing said jacket, said end disks being formed of a pair of plies ofcorrugated fiber board arranged to provide a passage communicating withsaid first passages, said container closures and sockets beingperforated to place said tube in communication with the passages in saidjacket end disks and body.

'4. A device for storing frozen products comprising a double-walledcontainer for said products having a gas space between said doublewalls, a tube for a solidified gaseous refrigerant -centrally located insaid container, means for closing the upper end of said container andtube, a double-walled bottom member for closing the lower end of saidcontainer and supporting and closing said tube, said bottom member havinopenings in its inner wall leading to sai rece tacle and to the gasspace between the wa of said container whereby to provide-for bottomcontainer members bein perforated at points overlyin and underlying theends of said tube and t e space between the conrovide for a circulationof the gas of sai refrigerant about the enclosed frozen products.

6. As a new article, a ackage for frozen products comprising a oublewalled con tainer, a frozen product in said container, a tube positionedcentrally in said container and extending the full length thereof, saidtube containing a solidgaseous refrigerating medium, double walledbottom and top members closing the ends of said tube and container, theinner wall of said members hav-- ing openings therein leading to saidtube and the space between said container walls wherebfy to provide forthe circulation of said re rigfirant about said frozen product.

7. A re igerating device for frozen products comprising a cylindricalcontainerhaving spaced apart side and end walls with a gas space betweensaid spaced walls, a. tube for a solidified gaseous refrigerantcentrally and axially positioned in said container and a extending thefull length thereof, said tube and gas space being interconnectedwhereby said refrigerant when converted to the aseous state willcirculate from said tube lnto said gas space.

M In testimony whereof I have hereunto subscribed my name atSpartanburg, Spartanburg County, South Carolina.

WILLIAM R. WILLAUER.

